I try to create library for macOS and iOS applicat...

# multiplatform

[aleksey.tomin]

I try to create library for macOS and iOS application.
1. I’ve read https://kotlinlang.org/docs/reference/native/cocoapods.html and add cocoapods into build.gradle.kts
2. I’ve called build
3. I’ve called podspec and library.podspec was created
4. I’ve called podBuildDependenciesMacos podSetupBuildMacos - was created cocoapods dir with framework
5. I’ve called podInstall - but was not pod into list: $ pod list returns 0 pods were found. What do I wrong?
How can I create library for use in Xcode?

[Kurt Renzo Acosta]

Have you referenced the generated podspec into the Podfile ?

[aleksey.tomin]

I think Podfile created by gradle plugin 😞
What I have to create?

[Liliia]

Please read through tis section and choose your case: https://kotlinlang.org/docs/reference/native/cocoapods.html#use-a-kotlin-gradle-project-as-a-cocoapods-dependency.
You can take https://kotlinlang.org/docs/mobile/samples.html#cocoapods-integration-samples as a sample.

[aleksey.tomin]

@Liliia The article and example - about import libraries into kotlin code. But I haven’t understood how can I import kotlin library into Xcode project

[romtsn]

https://kotlinlang.org/docs/reference/native/cocoapods.html#add-a-dependency-between-a-kotlin-pod-with-an-xcode-project-with-several-targets - that is exactly how to include your kotlin lib as a pod to your xcode project

[romtsn]

and that is how the Podfile should look like roughly -> https://github.com/Kotlin/multitarget-xcode-with-kotlin-cocoapods-sample/blob/master/severalTargetsXcodeProject/Podfile

[aleksey.tomin]

@romtsn
I try to use https://github.com/Kotlin/multitarget-xcode-with-kotlin-cocoapods-sample/blob/master/severalTargetsXcodeProject/Podfile
1. I’ve replaced kotlin to 1.4.10 (from dev version).
2. I’ve removed package auto signing (no key for You team)
3. gradle build and gradle podInstall in kotlin-library
4. xcodebuild -scheme MacosCLI in severalTargetsXcodeProject -

#import "Headers/dummy.h"
        ^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/kotlin-library/build/cocoapods/framework/kotlin_library.framework/Headers/dummy.h:2:1: error: unknown type name 'FOUNDATION_EXPORT'
FOUNDATION_EXPORT double dummyVersionNumber;
^
<module-includes>:1:9: note: in file included from <module-includes>:1:
#import "Headers/dummy.h"
        ^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/kotlin-library/build/cocoapods/framework/kotlin_library.framework/Headers/dummy.h:5:1: error: unknown type name 'FOUNDATION_EXPORT'
FOUNDATION_EXPORT const unsigned char dummyVersionString[];
^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/severalTargetsXcodeProject/MacosCLI/main.swift:2:8: error: could not build Objective-C module 'kotlin_library'
import kotlin_library
       ^

What do I wrong?
PS:

$ gradle -version
Picked up JAVA_TOOL_OPTIONS: -Djava.awt.headless=true

------------------------------------------------------------
Gradle 6.6
------------------------------------------------------------

Build time:   2020-08-10 22:06:19 UTC
Revision:     d119144684a0c301aea027b79857815659e431b9

Kotlin:       1.3.72
Groovy:       2.5.12
Ant:          Apache Ant(TM) version 1.10.8 compiled on May 10 2020
JVM:          14 (Oracle Corporation 14+36-1461)
OS:           Mac OS X 10.15.6 x86_64

$ xcodebuild -version
Xcode 11.7
Build version 11E801a

[romtsn]

you also need to run pod install in the root folder (where the Podfile is located) and then try to build or clean/build (sometimes this works from the 2nd time building for me)

[aleksey.tomin]

pod install works only in severalTargetsXcodeProject

$ pod install
Analyzing dependencies
Downloading dependencies
Generating Pods project
Integrating client project
Pod installation complete! There is 1 dependency from the Podfile and 1 total pod installed.

[!] The Podfile contains command line tool target(s) (MacosCLI) which are attempting to integrate dynamic frameworks or libraries.
This may not behave as expected, because command line tools are usually distributed as a single binary and cannot contain their own dynamic dependencies.

But it doesn’t help

[romtsn]

check here for me that worked out pretty well

[aleksey.tomin]

I’ve removed Pods/, run pod install and xcodebuild -scheme MacosCLI
The same problem

[aleksey.tomin]

I haven’t opened Xcode

[Liliia]

@aleksey.tomin, I’m sorry, there is one thing missed: Gradle wrapper is necessary. So when the project is ready, please run gradle wrapper command before executing step 4 in your description. Hope it helps.

[aleksey.tomin]

@Liliia No…
I’ve changed version of kotlin (to 1.4.10) and remove code signing - https://github.com/Kotlin/multitarget-xcode-with-kotlin-cocoapods-sample/pull/2
Next:

$ pwd
.../multitarget-xcode-with-kotlin-cocoapods-sample
$ gradle clean build podInstall wrapper
... BUILD SUCCESSFUL
$ cd severalTargetsXcodeProject/
$ xcodebuild -scheme MacosCLI
...
#import "Headers/dummy.h"
        ^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/kotlin-library/build/cocoapods/framework/kotlin_library.framework/Headers/dummy.h:2:1: error: unknown type name 'FOUNDATION_EXPORT'
FOUNDATION_EXPORT double dummyVersionNumber;
^
<module-includes>:1:9: note: in file included from <module-includes>:1:
#import "Headers/dummy.h"
        ^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/kotlin-library/build/cocoapods/framework/kotlin_library.framework/Headers/dummy.h:5:1: error: unknown type name 'FOUNDATION_EXPORT'
FOUNDATION_EXPORT const unsigned char dummyVersionString[];
^
/Users/atomin/Documents/external/multitarget-xcode-with-kotlin-cocoapods-sample/severalTargetsXcodeProject/MacosCLI/main.swift:2:8: error: could not build Objective-C module 'kotlin_library'
import kotlin_library
       ^

** BUILD FAILED **